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Control.com topic...
Sensors
Topic: Sensor technologies.
from the Maintenance department...
Speed sensor problem
Originally posted by Jim on 25 September, 2009 - 7:30 am
Problem found in measures with passive magnetic sensors in a over-speed trip system.
New Replies:
> Have you found out the cause(s) to this problem Jim? We did identify what we feel is the...
Have you found out the cause(s) to this problem Jim?...
Topic: Sensor technologies.
from the seeking product recommendations department...
Modbus TCP temperature monitor
Originally posted by mooseo on 28 February, 2011 - 2:09 am
I'm looking for a product recommendation
New Replies:
See there... http://pcsensor.com/index.php?_a=product&product_id=109 Moderator's...
I am looking for much the same thing, a simple temp and humidity for my server room. I just want...
Topic: Sensor technologies.
from the instrument department...
Gas Chromo readings
Originally posted by duks on 10 September, 2014 - 3:17 pm
Retention time of gas chromo
New Replies:
To the Moderator, In regards to the statement: "Moderator's note: I think...
the flow volumes in a gc are rather small, so any excess volumes in tubing and valves can result in...
Topic: Engineering and workplace issues.
from the Calibration department...
Rosemount 3051 Calibration
Originally posted by josh0206 on 22 June, 2014 - 3:39 pm
Rosemount 3051 Calibration
New Replies:
Yes. 12-117 in wc....
So if I go through the zero suppression that would be like me rearranging it from 0-105" H20...
Topic: Sensor technologies.
from the Instrumentation department...
ABB Flowmeter -Flow Data Is Less
Originally posted by sandeep on 11 September, 2014 - 6:27 am
flow meter data is less compared to other flowmeters
New Replies:
what are the units for the 20 mA value? how long does it take for the 1 meter level change?...
Hello Walt 4-20mA output from the flowmeter is taken to SCADA (Labview) through PLC (Schneider) ...
>> "flow meter data is less compared to other flowmeters" >other flowmeters? ...
> 1) Is this a new installation or a new problem with an existing, previously satisfactory...
Couple questions for you. Which output are you using, or are you looking at a totalizer on the...
> "flow meter data is less compared to other flowmeters" other flowmeters? ...
1) Is this a new installation or a new problem with an existing, previously satisfactory...
Posted by farid on 11 September, 2014 - 10:13 pm
Vendor converts input signal before 1900/65A and convert back to same signal at the output
Topic: Sensor technologies.
from the instrument department...
Level Transmitter on Condensate Drum
Originally posted by rosemount on 10 September, 2014 - 2:20 pm
Erratic reading for level transmitter on condensate drum
New Replies:
You are really not giving much for us to work with so if the assumption I am making is wrong it is...
There's nothing wrong with the transmitter, it's accurately reporting exactly what's happening -...
to address your question with any meaning, you need to furnish the detailed vessel drawings, and...
Topic: Sensor technologies.
from the control department...
4 wire vs. 3 wire RTD
Originally posted by KAKIL on 3 October, 2007 - 12:00 am
What is the difference between 4 wire RTD and 3 wire RTD?
New Replies:
There still seems to be confusion is some areas so I will do a summary of all the questions asked...
Topic: Power generation equipment control.
from the INSTRUMENT department...
Gap Voltage and Radial Vibration
Originally posted by RAJESH on 4 September, 2014 - 2:11 pm
If gap voltage in radial vibration is set at -11v dc, will it make any difference in measuring radial vibration ie. its dynamic value mm/s pp?
New Replies:
thanks...
Rajesh, setting the gap voltage at -11VDC rather than -10VDC will have no effect on the dynamic...
If the setting is say at -13 vdc instead of -10 vdc it will make any difference in radial vibration...
no > Due to setting at -11vdc instead of -10 vdc it will make any difference in radial...
Topic: Sensor technologies.
from the Instrumentation Design department...
Using a Standpipe with DP Level Transmitter
Originally posted by TANWEER on 3 September, 2014 - 8:57 pm
Can we use a standpipe with a DP type level transmitter?
New Replies:
Stilling wells are inside the tank or vessel, so getting an impulse line to connect at the bottom...
I am assuming your question is if you can use a DP transmitter on a standpipe. If that is the case...
Topic: Power generation equipment control.
from the Need Help department...
Need help with Swirl Chart for Siemens 501F
Posted by ncc on 4 September, 2014 - 8:00 am
We need references for determining the swirl for a 501F engine to match thermocouples to combustor basket.
Topic: Engineering and workplace issues.
from the Instrumentation and Control department...
Self Actuated Pressure Control Valve
Originally posted by Anil Bathra on 21 August, 2014 - 8:58 am
What happens when Upstream pressure of Self actuated pressure control valve (downstream) is less than set Pressure?
New Replies:
The application I am familiar with is where we have used these valves to control the fire ring main...
Topic: Sensor technologies.
from the Instrumentation and Control department...
Level Transmitter for Submersible Pump
Originally posted by Anil Bathra on 3 September, 2014 - 9:50 am
Which level transmitter will be the best choice for measuring the level of a well of 400 m depth?
New Replies:
Something I have done before was to make use of a submersible sensor and connect a 4mm steel cable...
Any one that goes deep enough. The question is, how deep? GE Druck's PTX 1730 says it does up...
Topic: Sensor technologies.
from the Forum department...
Running Analog Signal
Originally posted by jmgusmer on 26 August, 2014 - 6:34 pm
I need help with running analog signal alongside some 110 lines
New Replies:
I agree with allot of the responses so far. If at all possible, try to keep the 4-20ma signal...
The shielded, twisted pair cable is a must since that will help prevent any electrical induction....
Basically, anybody can do anything they like, and the deity knows how often Išve seen what youšre...
Topic: Sensor technologies.
from the Instrumentation Engineers department...
Wet Leg Carried Over Problem in Differential Pressure Transmitters
Originally posted by Shaiq Bashir on 31 August, 2014 - 2:47 am
The seal which is filled in wetleg of DPT, is carried away with pipe fluid.
New Replies:
Thanks for the reply. The reason we are using buffer solution is because we are measuring flow of...
Why did you use the buffer solutions? The SS impulse lines are very resistive to ammonia corrosion...
Routine refilling of all such wet legs is commonly practiced in such cases....
Topic: The Business of Automation and Control
from the Investors department...
New Flow Measurement Method
Originally posted by Abdolazim Hasseli on 9 April, 2014 - 1:09 am
How to find an investor of instruments.
New Replies:
What are the usual contract of employment conditions? In the USA any idea, innovation or...
Thank you again. I think what I have to do is to make sure that my idea works perfectly. Then I...
> I am on same process of fund raising that A. Hasseli for a different products line. If anyone...
Originally posted by Ashiq on 29 May, 2014 - 5:38 am
re-configure Solatron 7951 flow computer.
New Replies:
Hi, I think the contact details I gave are probably going to get you to them but just in case: ...
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
Instrument Control Loop
Originally posted by Waqar Ahmed on 26 June, 2014 - 3:18 am
Maintenance procedure of process control loop.
New Replies:
On any live process plant this procedure can be followed directly or be adapted slightly to suit...
Topic: Application Questions and Problems
from the Automation List department...
Control Valve Cycle Measurement
Originally posted by Gerald Beaudoin on 20 August, 2014 - 8:04 am
How to measure the control valve cycles?
New Replies:
I think you are making things more complicated than it needs to be. I have never heard about...
By Gerald Beaudoin on 27 August, 2014 - 1:43 pm -
Sure would appreciate any points of view on this one..... Cheers Gerald Beaudoin...
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